Newer update of MesaFx is online: 0.51H 5a Release. This release fixes other PIXELFORMAT issues for pre-Napalm cores and fix some minor bug. Moreover the resolution limitation at 1600x1200 in mesafx was removed.
The package contain (in CVG dir) a specific file for Voodoo2 user: a Glide3x for Win9x/me - Win2k - WinXP and FXmemmap for win9x/ME user only.
Another Glide3x (in the root) should be used for voodoo 3/4/5 User .